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Posted 23 Feb 2005

Quagmire Particle Engine

, 23 Feb 2005
An object oriented OpenGL particle engine, for the simple creation of advanced particle effects.
/*	Ken Mazaika
	February 23, 2005
	Quagmire Particle Engine
	Copyright 2005

#pragma once

#include "qd.h"

class QdParticle
	Qd3dPoint m_ptUL;		//Upper Left corner to the square
	Qd3dPoint m_ptLR;		//Lower right corner of the square

	QdColor m_clrCurrent;	//Current color of the particle
	QdColor m_clrFade;		//What increment the color by

	Qd3dPoint m_ptDirection; //What to increment the object by
	Qd3dPoint m_ptGravity;	//What to increment the object by

	int m_nFrames;			//How many times has the particle been displayed
	float m_fAge;			//How many "seconds" elapsed (for gravity calculations)

	float m_fLife;			//Determine "life"
	float m_fGravityFactor;
	float m_fFadeLife;
	int m_nParticle;
	void draw();
	void advance();

	friend class QdParticleEngine;

class QdParticleEngine
	bool m_bLimit;
	QdParticle *m_pParticles;
	bool m_bEngineActive;
	int m_nParticles;
	int m_nAge;

	float m_fLimitR;
	float m_fLimitL;
	float m_fLimitT;
	float m_fLimitB;

	char *m_szImgPath;
	char m_szImgPathA[128];
	int setLimit(float fLimitL, float fLimitR, float fLimitT, float fLimitB);
	int setLimit(bool bLimit);
	int setCurrentColor(int nParticle, float fRed, float fGreen, float fBlue, float fAlpha);
	int setFadeColor(int nParticle, float fRed, float fGreen, float fBlue, float fAlpha);
	int setDirection(int nParticle, float fX, float fY, float fZ);
	int setGravity(int nParticle, float fX, float fY, float fZ);
	int setLR(int nParticle, float fX, float fY, float fZ);
	int setUL(int nParticle, float fX, float fY, float fZ);
	int setAge(int nParticle, float fAge);
	int setFrame(int nParticle, int nFrame);
	int setGravityFactor(int nParticle, float fGravityFactor);
	int setLife(int nParticle, float fLife);
	int setFadeLife(int nParticle, float fFadeLife);
	int setImgPath(char *szImgPath);
	int draw();
	int init(int nParticles);
	int virtual resetParticles();

	//reset a specific particle
	virtual int particleDead(int nParticle);
	int destroy();

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About the Author

Ken Mazaika
United States United States
No Biography provided

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